18
6.6 DAY/NIGHT menu
To enter DAY/NIGHT menu, press
●
button at MAIN menu>DAY/NIGHT.
DAY/NIGHT Default
Descriptions
BURST
OFF
BURST determines whether a color burst signal keeps output or eliminated
when camera switches to B/W. BURST mode setting here applies to EXT and
B/W mode too.
ON enables the color burst on B/W video signal.
OFF removes the color burst signal on B/W video.
DELAY
CNT
005
DELAY CNT is time in second while camera maintains its status before
Day
Night switches. DELAY can avoid the unwanted/frivolous switching by
a short term lights such as light by the passing car.
D
N
THRES
009
D
N is a threshold level which determines to switch from DAY to NIGHT.
Lower(Higher) value makes the camera switched from Day to Night at lower
(higher) illumination. If it stays in Day(Color) mode during night time, increase
D
N threshold value until it just switches to Night.
Examine and verify Day/Night operation according to IMPORTANT ACTIVITY.
CAUTION
If the gap between D
N and N
D is not big enough, camera may
repeat Day
Night switches.
N
D
THRES
090
N
D is a threshold level which determines to switch from NIGHT to DAY.
Lower(Higher) value makes the camera switched from Night to Day at lower
(higher) illumination.
If it stays in Night(B/W) mode during day time, decrease N
D threshold value
until it just switches to Day.
Examine and verify Day/Night operation according to IMPORTANT ACTIVITY.
CAUTION
If the gap between D
N and N
D is not big enough, camera may
repeat Day
Night switches.
If N
D is decreased from the Factory default, the same decrement is
recommended for D
N to avoid repeating DAY
NIGHT unintentionally.
AUTO mode in DAY/NIGHT is used only for a
camera which does not have a light sensor.
DAY or NIGHT is decided by the amount of the
light through the lens only.
IMPORTANT ACTIVITY required !!!
DAY->NIGHT and NIGHT->DAY operations must
be examined and verified at the final installation.
Block the lens for a few seconds for NIGHT mode
and release and let it return to DAY mode.
If camera stays at NIGHT mode more than 10sec,
decrease N
→
D THRES a little and repeat the fore-
mentioned steps.
If the scene is too dim or lens iris was adjusted too
low(near close), it may not return to DAY
Содержание VKC-12120F2810IR
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